G02F 1/133621
Providing coloured light
Official title: {providing coloured light (G02F1/133617, G02F1/133533 take precedence)}
G02F1/133621 (Providing coloured light) appears on 1,159 US grants and 1,221 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,159
- Published applications
- 1,221
- Assignees
- 409
- Inventors
- 2,551
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 15 | 0 |
| 1998 | 29 | 0 |
| 1999 | 17 | 0 |
| 2000 | 36 | 0 |
| 2001 | 33 | 17 |
| 2002 | 28 | 34 |
| 2003 | 30 | 21 |
| 2004 | 25 | 29 |
| 2005 | 14 | 32 |
| 2006 | 24 | 42 |
| 2007 | 19 | 49 |
| 2008 | 13 | 55 |
| 2009 | 24 | 56 |
| 2010 | 39 | 50 |
| 2011 | 35 | 50 |
| 2012 | 51 | 47 |
| 2013 | 41 | 29 |
| 2014 | 37 | 34 |
| 2015 | 31 | 49 |
| 2016 | 34 | 61 |
| 2017 | 43 | 123 |
| 2018 | 73 | 125 |
| 2019 | 109 | 83 |
| 2020 | 79 | 41 |
| 2021 | 52 | 49 |
| 2022 | 53 | 43 |
| 2023 | 38 | 45 |
| 2024 | 38 | 29 |
| 2025 | 24 | 12 |
| 2026 | 10 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photosensitive resin composition, cured product and manufacturing method thereof, light conversion layer and light emitting device1 Sep 2026US 12,723,169 B2Advanced Echem Materials Company Limited
- Display backlight including optical film having a transmission peak wavelength greater than an emisssion peak wavelegnth of the backlight7 Jul 2026US 12,675,013 B23M Innovative Properties Company
- Color calibration circuit and method applied to backlight source in liquid crystal display module30 Jun 2026US 12,672,215 B2Powerview Display Corporation
- Liquid crystal display device16 Jun 2026US 12,658,150 B2Semiconductor Energy Laboratory Co.Ltd.
- Backlight unit and display device including the same14 Apr 2026US 12,604,769 B2LG Display Co., Ltd.
- Display backlight including optical film having a transmission peak wavelength greater than an emission peak wavelength of the backlight8 Oct 2026US 2026/0310023 A13M Innovative Properties Company
- Backlight module and display apparatus8 Oct 2026US 2026/0310024 A1BOE MLED Technology Co., Ltd.
- Backlight unit for display device1 Oct 2026US 2026/0299356 A1LG Electronics Inc.
- Backlight Unit and Display Device Including the Same1 Oct 2026US 2026/0305467 A1LG Display Co., Ltd.
- Light-diffusing sheet, backlight unit, liquid crystal display device, and information apparatus2 Jul 2026US 2026/0186340 A1Keiwa Inc.
Most cited
By later US patents
- Optics arrangements including light source arrangements for an active matrix liquid crystal image generator365US 5,808,800 ADisplaytech, Inc. · 1998
- Shuttered and cycled light emitting diode display and method of producing the same349US 5,359,345 ACree Research, Inc. · 1994
- Holographic projection system278US 6,211,976 B1DigiLens Inc. · 2001
- High resolution, high brightness light emitting diode display and method and producing the same253US 5,724,062 ACree Research, Inc. · 1998
- System and method employing LED light sources for a projection display246US 6,224,216 B1InFocus Corporation · 2001